12 void vfio_init_device_cdev(struct vfio_device *device)  in vfio_init_device_cdev()  argument
14 	device->device.devt = MKDEV(MAJOR(device_devt), device->index);  in vfio_init_device_cdev()
15 	cdev_init(&device->cdev, &vfio_device_fops);  in vfio_init_device_cdev()
16 	device->cdev.owner = THIS_MODULE;  in vfio_init_device_cdev()
20  * device access via the fd opened by this function is blocked until
25 	struct vfio_device *device = container_of(inode->i_cdev,  in vfio_device_fops_cdev_open()  local
31 	if (!vfio_device_try_get_registration(device))  in vfio_device_fops_cdev_open()
34 	df = vfio_allocate_device_file(device);  in vfio_device_fops_cdev_open()
43 	 * Use the pseudo fs inode on the device to link all mmaps  in vfio_device_fops_cdev_open()
45 	 * associated to this device using unmap_mapping_range().  in vfio_device_fops_cdev_open()
47 	filep->f_mapping = device->inode->i_mapping;  in vfio_device_fops_cdev_open()
52 	vfio_device_put_registration(device);  in vfio_device_fops_cdev_open()
59 	vfio_device_get_kvm_safe(df->device, df->kvm);  in vfio_df_get_kvm_safe()
63 static int vfio_df_check_token(struct vfio_device *device,  in vfio_df_check_token()  argument
68 	if (!device->ops->match_token_uuid) {  in vfio_df_check_token()
75 		return device->ops->match_token_uuid(device, NULL);  in vfio_df_check_token()
80 	return device->ops->match_token_uuid(device, &uuid);  in vfio_df_check_token()
87 	struct vfio_device *device = df->device;  in vfio_df_ioctl_bind_iommufd()  local
113 	ret = vfio_device_block_group(device);  in vfio_df_ioctl_bind_iommufd()
117 	mutex_lock(&device->dev_set->lock);  in vfio_df_ioctl_bind_iommufd()
118 	/* one device cannot be bound twice */  in vfio_df_ioctl_bind_iommufd()
124 	ret = vfio_df_check_token(device, &bind);  in vfio_df_ioctl_bind_iommufd()
136 	 * Before the device open, get the KVM pointer currently  in vfio_df_ioctl_bind_iommufd()
137 	 * associated with the device file (if there is) and obtain  in vfio_df_ioctl_bind_iommufd()
138 	 * a reference.  This reference is held until device closed.  in vfio_df_ioctl_bind_iommufd()
139 	 * Save the pointer in the device for use by drivers.  in vfio_df_ioctl_bind_iommufd()
152 	device->cdev_opened = true;  in vfio_df_ioctl_bind_iommufd()
158 	mutex_unlock(&device->dev_set->lock);  in vfio_df_ioctl_bind_iommufd()
164 	vfio_device_put_kvm(device);  in vfio_df_ioctl_bind_iommufd()
168 	mutex_unlock(&device->dev_set->lock);  in vfio_df_ioctl_bind_iommufd()
169 	vfio_device_unblock_group(device);  in vfio_df_ioctl_bind_iommufd()
175 	struct vfio_device *device = df->device;  in vfio_df_unbind_iommufd()  local
185 	mutex_lock(&device->dev_set->lock);  in vfio_df_unbind_iommufd()
187 	vfio_device_put_kvm(device);  in vfio_df_unbind_iommufd()
189 	device->cdev_opened = false;  in vfio_df_unbind_iommufd()
190 	mutex_unlock(&device->dev_set->lock);  in vfio_df_unbind_iommufd()
191 	vfio_device_unblock_group(device);  in vfio_df_unbind_iommufd()
198 	struct vfio_device *device = df->device;  in vfio_df_ioctl_attach_pt()  local
214 		if (!device->ops->pasid_attach_ioas)  in vfio_df_ioctl_attach_pt()
228 	mutex_lock(&device->dev_set->lock);  in vfio_df_ioctl_attach_pt()
230 		ret = device->ops->pasid_attach_ioas(device,  in vfio_df_ioctl_attach_pt()
234 		ret = device->ops->attach_ioas(device, &attach.pt_id);  in vfio_df_ioctl_attach_pt()
242 	mutex_unlock(&device->dev_set->lock);  in vfio_df_ioctl_attach_pt()
247 	device->ops->detach_ioas(device);  in vfio_df_ioctl_attach_pt()
249 	mutex_unlock(&device->dev_set->lock);  in vfio_df_ioctl_attach_pt()
257 	struct vfio_device *device = df->device;  in vfio_df_ioctl_detach_pt()  local
272 		if (!device->ops->pasid_detach_ioas)  in vfio_df_ioctl_detach_pt()
286 	mutex_lock(&device->dev_set->lock);  in vfio_df_ioctl_detach_pt()
288 		device->ops->pasid_detach_ioas(device, detach.pasid);  in vfio_df_ioctl_detach_pt()
290 		device->ops->detach_ioas(device);  in vfio_df_ioctl_detach_pt()
291 	mutex_unlock(&device->dev_set->lock);  in vfio_df_ioctl_detach_pt()
296 static char *vfio_device_devnode(const struct device *dev, umode_t *mode)  in vfio_device_devnode()